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ADM3488AR 参数 Datasheet PDF下载

ADM3488AR图片预览
型号: ADM3488AR
PDF下载: 下载PDF文件 查看货源
内容描述: [IC LINE TRANSCEIVER, PDSO8, SOIC-8, Line Driver or Receiver]
分类和应用: 驱动光电二极管接口集成电路驱动器
文件页数/大小: 14 页 / 526 K
品牌: AD [ ANALOG DEVICES ]
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Preliminary Technical Data
FEATURES
EIA RS-485/RS-422 Compliant
Data Rate Options
ADM3483, ADM3488 – 250kbps
ADM3485, ADM3490 – 10Mbps
Half and Full Duplex Options
Reduced Slew Rates for Low EMI
2nA Supply Current in Shutdown Mode
(ADM3483,ADM3485)
Up to 32 Transceivers on a bus
-7V to +12V Bus Common Mode Range
Specified over –40°C to +85°C Temperature Range
Available in 8-Lead SOIC
ADM3483/85 available in an 8-Lead LFCSP Package
3.3V Slew Rate Limited,
Half and Full Duplex
ADM3483/ADM3485/ADM3488/ADM3490
logic-high output if both inputs are open circuit. The ADM3488
and ADM3490 feature full duplex communication, while the
ADM3483 and ADM3485 are designed for half-duplex
communication.
The driver outputs are slew rate limited in order to reduce EMI
and data errors caused by reflections from improperly
terminated buses. Excessive power dissipation caused by bus
contention or by output shorting is prevented with a thermal
shutdown circuit.
The parts are fully specified over the commercial and industrial
temperature ranges and all are available in 8-lead SOIC and the
ADM3483 and the ADM3485 are also available in an 8-lead
LFCSP packages.
APPLICATIONS
Low-Power RS-485 Applications
EMI Sensitive Systems
DTE-DCE Interfaces
Industrial Control
Packet Switching
Local Area Networks
Level Translators
FUNCTIONAL BLOCK DIAGRAMS
V
CC
V
CC
ADM3488/ADM3490
ADM3483/ADM3485
RO
R
A
RO
R
B
A
GENERAL DESCRIPTION
The ADM3483, ADM3485, ADM3488 and ADM3490 are 3.3V,
low-power transceivers for RS-485 and RS-422 communication.
Each part contains one driver and one receiver. The ADM3483
and ADM3488 feature slew-rate-limited drivers that minimize
EMI and reduce reflections caused by improperly terminated
cables, allowing error-free data transmission at data rates up to
250kbps. The partially slew-rate-limited MAX3486 transmits up
to 2.5Mbps. The ADM3485 and ADM3490 transmit at up to
10Mbps.
The drivers are short-circuit current limited and are protected
against excessive power dissipation by thermal shutdown
circuitry that places the driver outputs into a high-impedance
state. The receiver input has a fail-safe feature that guarantees a
Part No.
Guaranteed
Data Rate
(Mpbs)
0.25
10
0.25
10
Supply
Voltage
(V)
Half/Full
Duplex
Half
Half
Full
Full
RE
DE
B
DI
DI
D
D
Z
Y
GND
GND
Slew-Rate
Limited
Yes
No
Yes
No
ADM3483
ADM3485
ADM3488
ADM3490
3.0 to 3.6
Driver/
Reciever
Enable
Yes
Yes
No
No
Shutdown
Current
(nA)
2
2
-
-
Pin
Count
8
8
8
8
Table 1. Selection Table
Rev. PrD
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective companies.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
www.analog.com
Tel: 781.329.4700
Fax: 781.326.8703
© 2005 Analog Devices, Inc. All rights reserved.